Unique biphasic progestagen profile in parturient and non-parturient giant pandas (Ailuropoda melanoleuca) as determined by faecal hormone monitoring
نویسندگان
چکیده
منابع مشابه
Endocrine milieu of perioestrus in the giant panda (Ailuropoda melanoleuca), as determined by non-invasive hormone measures.
The aim of the present study was to determine the efficacy of faecal hormonal measures for evaluating ovarian activity in a significant sized cohort of giant pandas during the perioestrual period. Faecal excretion of oestrogen and progestagen metabolites corresponded with urinary patterns and receptive behaviours. Longitudinal assessment of 10 females revealed that, on average, faecal oestrogen...
متن کاملParallel and seasonal changes in gonadal and adrenal hormones in male giant pandas (Ailuropoda melanoleuca)
The purpose of this study was to determine androgen and glucocorticoid (GC) hormonal patterns in male giant pandas (Ailuropoda melanoleuca) by monitoring gonadal and adrenal metabolites in feces. Initial validation experiments demonstrated comparable excretory patterns in urine versus feces for both androgen and GC measures. Matched urinary and fecal androgen and GC were correlated strongly wit...
متن کاملAnalysis of the breast milk of giant pandas (Ailuropoda melanoleuca) and the preparation of substitutes
The first milk substitute for giant panda cubs was developed in 1988 based on limited data about giant panda breast milk and that of certain types of bear. Mixtures of other formulas have also been fed to cubs at some facilities. However, they are not of sufficient nutritional quality for promoting growth in panda cubs. Here, we report analysis of giant panda breast milk and propose new milk su...
متن کاملVocal discrimination of potential mates by female giant pandas (Ailuropoda melanoleuca).
In the current study, we used male giant panda (Ailuropoda melanoleuca) bleats in a habituation-discrimination paradigm to determine whether females discriminate between the vocalizations of different males. We found that females habituated to the bleats of a specific male showed a significant dishabituation when they were presented with bleats from a novel male. Further playbacks, in which we ...
متن کاملUrinary profiles of luteinizing hormone, estrogen and progestagen during the estrous and gestational periods in giant pandas (Ailuropda melanoleuca)
Luteinizing hormone (LH) is one of the main pituitary hormones that regulate ovulation, however its role has not been studied in giant panda. In this study, we developed an ELISA method for the detection of panda urinary LH. We analyzed urinary hormones of 24 female pandas during 36 breeding periods, we found females could easily be impregnated if the first mating occurred within 10 hours after...
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ژورنال
عنوان ژورنال: REPRODUCTION
سال: 2010
ISSN: 1470-1626,1741-7899
DOI: 10.1530/rep-10-0003